Paper Info
Title
Rate-distortion performance of dual-layer motion compensation employing different mesh densities
Abstract
We describe a dual layer algorithm for mesh-based motion estimation. The proposed algorithm, employing meshes at different scales, aims to improve the rate-distortion perform- ance at fixed bit rates. Without the need for time-consuming evaluation, the proposed algorithm identifies the motion- active regions in a picture. By enhancing the mesh structure in the aforementioned regions, a significant improvement in motion estimation is evident. Furthermore, the scheme to con- struct two different significance maps at both encoder and decoder provides a reduction in transmission overhead. Simu- lations on test sequences possessing high motion activity show that the proposed algorithm results in a better PSNR- rate performance compared to single layer motion estimation using 16x16 triangular meshes. Improvements of up to 1.6dB are obtained.
Year
Venue
Keywords
2006
EUSIPCO
distortion,image motion analysis,video codecs,video coding,psnr-rate performance,dual layer algorithm,dual-layer motion compensation,mesh densities,mesh structure,mesh-based motion estimation,motion-active regions,rate-distortion performance,transmission overhead,triangular meshes
Field
DocType
ISSN
Rate distortion,Polygon mesh,Quarter-pixel motion,High-motion,Simulation,Computer science,Motion compensation,Algorithm,Encoder,Motion estimation
Conference
2219-5491
Citations 
PageRank 
References 
0
0.34
4
Authors
3
Name
Order
Citations
PageRank
Andy C. Yu1366.14
Heechan Park2557.18
Graham R. Martin35411.60